Home / 16,871.28-23,280.36-10,156.80

Finding the Fourth Proportional to 16,871.28, 23,280.36 and 10,156.80

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Solution

The fourth proportional to 16,871.28, 23,280.36 and 10,156.80 is: 14,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.28 : 23,280.36 = 10,156.80 : x
  2. Step 2: Convert to fraction form
    16,871.28/23,280.36 = 10,156.80/x
  3. Step 3: Cross multiply
    16,871.28x = 23,280.36 × 10,156.80
  4. Step 4: Simplify right side
    16,871.28x = 236,453,960.45
  5. Step 5: Solve for x
    x = 236,453,960.45/16,871.28
  6. Step 6: Final answer
    x = 14,015.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.